I can only second that --- the admin interface is terrible. Sometimes
the spam goes through even though both me and Mateusz who are
moderators of the sympy list think that we *didn't* let it through.
Once I accidentally clicked always allow instead of spam, so it went
through. Let me know if you know something better than google groups.
Ondrej
We've also been having trouble with the Mathtex list. Some of the spam makes
it to moderation while rest gets straight through. I have even read stories of
spammers faking the addresses of actual subscribers in order to by-pass
moderation completely.
Google really do need to up their game when it comes to spam filtering.
Regards, Freddie.